Add an assert.

diff --git a/src/lib/ffmpeg_examiner.cc b/src/lib/ffmpeg_examiner.cc
index fab9990060041602191380d47291d8a24b87cba7..01886da7f90ce0c7bd68a8ebd4a57f36dd7f6b19 100644 (file)
--- a/src/lib/ffmpeg_examiner.cc
+++ b/src/lib/ffmpeg_examiner.cc
@@ -489,6 +489,7 @@ PixelQuanta
 FFmpegExaminer::pixel_quanta () const
 {
        auto const desc = av_pix_fmt_desc_get(video_codec_context()->pix_fmt);
+       DCPOMATIC_ASSERT (desc);
        return { 1 << desc->log2_chroma_w, 1 << desc->log2_chroma_h };
 }